Datasheet LT6600-15 (Analog Devices) - 6
| Hersteller | Analog Devices |
| Beschreibung | Very Low Noise, Differential Amplifier and 15MHz Lowpass Filter |
| Seiten / Seite | 12 / 6 — PIN FUNCTIONS. IN– and IN+ (Pins 1, 8):. OUT+ and OUT– (Pins 4, 5):. VOCM … |
| Dateiformat / Größe | PDF / 162 Kb |
| Dokumentensprache | Englisch |
PIN FUNCTIONS. IN– and IN+ (Pins 1, 8):. OUT+ and OUT– (Pins 4, 5):. VOCM (Pin 2):. MID (Pin 7):. V+ and V – (Pins 3, 6):
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LT6600-15
PIN FUNCTIONS IN– and IN+ (Pins 1, 8):
Input Pins. Signals can be ap- applications, bypass Pin 3 to ground and Pin 6 to ground plied to either or both input pins through identical external with a quality 0.1μF ceramic capacitor. resistors, RIN. The DC gain from differential inputs to the
OUT+ and OUT– (Pins 4, 5):
Output Pins
.
Pins 4 and 5 are differential outputs is 536Ω/RIN. the fi lter differential outputs. Each pin can drive a 100Ω
VOCM (Pin 2):
Is the DC Common Mode Reference Voltage and/or 50pF load. for the 2nd Filter Stage. Its value programs the common
V
mode voltage of the differential output of the fi lter. Pin 2 is a
MID (Pin 7):
The VMID pin is internally biased at mid- supply, see the Block Diagram section. For single supply high impedance input, which can be driven from an external operation, the V voltage reference, or Pin 2 can be tied to Pin 7 on the PC MID pin should be bypassed with a qual- ity 0.01μF ceramic capacitor to Pin 6. For dual supply board. Pin 2 should be bypassed with a 0.01μF ceramic operation, Pin 7 can be bypassed or connected to a high capacitor unless it is connected to a ground plane. quality DC ground. A ground plane should be used. A poor
V+ and V – (Pins 3, 6):
Power Supply Pins
.
For a single ground will increase noise and distortion. Pin 7 sets the 3.3V or 5V supply (Pin 6 grounded) a quality 0.1μF ceramic output common mode voltage of the 1st stage of the fi lter. bypass capacitor is required from the positive supply pin It has a 5.5kΩ impedance, and it can be overridden with (Pin 3) to the negative supply pin (Pin 6). The bypass an external low impedance voltage source. should be as close as possible to the IC. For dual supply
BLOCK DIAGRAM
RIN V + IN IN+ OUT– V– VMID 8 7 6 5 V+ 11k PROPRIETARY LOWPASS 536Ω FILTER STAGE 11k 200Ω V– OP AMP 200Ω + – + – V V OCM OCM – + – + 200Ω 200Ω 536Ω 1 2 3 4 V – IN V IN– OCM V+ OUT+ RIN 660015 BD 660015fb 6
PIN FUNCTIONS IN– and IN+ (Pins 1, 8):
Input Pins. Signals can be ap- applications, bypass Pin 3 to ground and Pin 6 to ground plied to either or both input pins through identical external with a quality 0.1μF ceramic capacitor. resistors, RIN. The DC gain from differential inputs to the
OUT+ and OUT– (Pins 4, 5):
Output Pins
.
Pins 4 and 5 are differential outputs is 536Ω/RIN. the fi lter differential outputs. Each pin can drive a 100Ω
VOCM (Pin 2):
Is the DC Common Mode Reference Voltage and/or 50pF load. for the 2nd Filter Stage. Its value programs the common
V
mode voltage of the differential output of the fi lter. Pin 2 is a
MID (Pin 7):
The VMID pin is internally biased at mid- supply, see the Block Diagram section. For single supply high impedance input, which can be driven from an external operation, the V voltage reference, or Pin 2 can be tied to Pin 7 on the PC MID pin should be bypassed with a qual- ity 0.01μF ceramic capacitor to Pin 6. For dual supply board. Pin 2 should be bypassed with a 0.01μF ceramic operation, Pin 7 can be bypassed or connected to a high capacitor unless it is connected to a ground plane. quality DC ground. A ground plane should be used. A poor
V+ and V – (Pins 3, 6):
Power Supply Pins
.
For a single ground will increase noise and distortion. Pin 7 sets the 3.3V or 5V supply (Pin 6 grounded) a quality 0.1μF ceramic output common mode voltage of the 1st stage of the fi lter. bypass capacitor is required from the positive supply pin It has a 5.5kΩ impedance, and it can be overridden with (Pin 3) to the negative supply pin (Pin 6). The bypass an external low impedance voltage source. should be as close as possible to the IC. For dual supply
BLOCK DIAGRAM
RIN V + IN IN+ OUT– V– VMID 8 7 6 5 V+ 11k PROPRIETARY LOWPASS 536Ω FILTER STAGE 11k 200Ω V– OP AMP 200Ω + – + – V V OCM OCM – + – + 200Ω 200Ω 536Ω 1 2 3 4 V – IN V IN– OCM V+ OUT+ RIN 660015 BD 660015fb 6